This is a remote-controlled toy boat designed for water battles. It has an outer shell with holes that let water in, which then collects inside. The boat can shoot water at other toys and is designed to keep working even when hit and taking on water, but once a certain amount of water has collected inside, it will sink or stop working.
Why it matters: The decreasing cost and increasing robustness of miniaturized, waterproof electronics and sensors since 2020 could simplify the design and manufacturing of such a complex water toy.
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